200200222121 has 4 divisors (see below), whose sum is σ = 200204139012. Its totient is φ = 200196305232.

The previous prime is 200200222073. The next prime is 200200222147. The reversal of 200200222121 is 121222002002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121222002002 = 2 ⋅60611001001.

It can be written as a sum of positive squares in 2 ways, for example, as 128729546521 + 71470675600 = 358789^2 + 267340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200200222121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200200222096 and 200200222105.

It is not an unprimeable number, because it can be changed into a prime (200200222151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1880750 + ... + 1984343.

It is an arithmetic number, because the mean of its divisors is an integer number (50051034753).

Almost surely, 2^200200222121 is an apocalyptic number.

It is an amenable number.

200200222121 is a deficient number, since it is larger than the sum of its proper divisors (3916891).

200200222121 is an equidigital number, since it uses as much as digits as its factorization.

200200222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916890.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200200222121 its reverse (121222002002), we get a palindrome (321422224123).

The spelling of 200200222121 in words is "two hundred billion, two hundred million, two hundred twenty-two thousand, one hundred twenty-one".